The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A354467 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A354467

Positive integers whose prime factors are congruent to 1 (mod 12).
(history; published version)

#14 by N. J. A. Sloane at Sun Jul 03 09:24:37 EDT 2022

STATUS

proposed

approved

#13 by Michel Marcus at Thu Jun 02 11:48:30 EDT 2022

STATUS

editing

proposed

#12 by Michel Marcus at Thu Jun 02 11:48:27 EDT 2022

PROG

(PARI) isok(m) = my(f=factor(m)); for (k=1, #f~, if ((f[k, 1] % 12) != 1, return(0))); return (1); \\ Michel Marcus, Jun 02 2022

STATUS

proposed

editing

#11 by Jon E. Schoenfield at Thu Jun 02 07:35:10 EDT 2022

STATUS

editing

proposed

#10 by Jon E. Schoenfield at Thu Jun 02 07:34:52 EDT 2022

COMMENTS

All the prime factors of each term in this sequence are all terms of A068228.

STATUS

proposed

editing

#9 by Michel Marcus at Thu Jun 02 00:40:46 EDT 2022

STATUS

editing

proposed

Discussion

Thu Jun 02

01:44

Steven Lu: thanks

#8 by Michel Marcus at Thu Jun 02 00:40:38 EDT 2022

NAME

Positive integers whose prime factors are all terms of A068228congruent to 1 (mod 12).

COMMENTS

All the prime factors of each term in this sequence are congruent to 1 (mod 12)all terms of A068228.

MATHEMATICA

Select[Range[10000], Count[Mod[First /@ FactorInteger[#], 12], 1] == Length[FactorInteger[#]] &]

Count[Mod[First /@ FactorInteger[#], 12], 1] ==

Length[FactorInteger[#]] &]

STATUS

proposed

editing

Discussion

Thu Jun 02

00:40

Michel Marcus: ok ?

#7 by Jon E. Schoenfield at Thu Jun 02 00:33:03 EDT 2022

STATUS

editing

proposed

#6 by Jon E. Schoenfield at Thu Jun 02 00:26:00 EDT 2022

NAME

Positive Integers integers whose prime factors are all members terms of A068228.

COMMENTS

The All the prime factors of those integers each term in this sequence are all congruent to 1 (mod 12).

MATHEMATICA

Count[Mod[First /@ FactorInteger[#], 12], 1] ==

STATUS

proposed

editing

#5 by Steven Lu at Wed Jun 01 21:23:25 EDT 2022

STATUS

editing

proposed